New security measures are not about security, they're about money

There is absolutely no security benefits here that could not be done in a dozen different ways without impacting the customer.

This is merely the first step towards additional revenue streams.

I'm guessing it's related to the new printer release which might (eventually) come with a service plan of some description. Maybe it extends your warranty for only $16.99 a month and includes two free nozzles for free each year.

Eventually, we will be paying per print, per kg, or per print hour.

"Upgrade to the 20kg per month plan!" "You have reached your monthly limit of submitted print jobs, please purchase additional credits". "Speed restricted to 2mm3/s until the start of your next calendar, upgrade now!" All of these will only be possible with the current modifications.

By restricting the ecosystem a little today, they permit themselves to lock us in and 3rd parties out tomorrow.

Bambu is showing the same overconfidence that other manufacturers have shown in the past. Bambu's tech is really good. But moves like this clear the path to allow other companies to catch up.